format PE GUI 4.0 DLL
include '%include%/win32a.inc'

entry DllMain

section '.data' data readable writeable

msgBoxText db "Hello, Java! I'm FASM.", 0
msgBoxCaption db "HELLOJ.DLL", 0

section '.text' code readable executable

proc DllMain, hInst, dwReason, lpReserved
	mov eax, TRUE
	ret
endp

proc Java_Program_showHello stdcall, jenv:DWORD, jcls:DWORD
	invoke MessageBox, HWND_DESKTOP, msgBoxText, msgBoxCaption, MB_OK
	ret
endp

section '.idata' import data readable

library user32, 'USER32.DLL'
import user32,\
	MessageBox, 'MessageBoxA'

section '.edata' export data readable
export 'HELLOJ.DLL',\
	Java_Program_showHello, 'ShowHello'

section '.reloc' fixups data readable discardable